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    Question

    What will come in place of the question mark (?) in the following series? 

    18, 10, 12, 21, ?,

    120
    A 45 Correct Answer Incorrect Answer
    B 35 Correct Answer Incorrect Answer
    C 25 Correct Answer Incorrect Answer
    D 46 Correct Answer Incorrect Answer
    E 36 Correct Answer Incorrect Answer

    Solution

    ATQ, 18 × 0.5 + 1 = 10 10 × 1 + 2 = 12 12 × 1.5 + 3 = 21 21 × 2 + 4 = 46 46 × 2.5 + 5 = 120

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